Baba T.,Japan National Institute of Advanced Industrial Science and Technology |
Yamada N.,Japan National Institute of Advanced Industrial Science and Technology |
Taketoshi N.,Thermophysical Properties Section |
Watanabe H.,Thermophysical Properties Section |
And 4 more authors.
High Temperatures - High Pressures | Year: 2010
As the national metrology institute representing Japan, the mission of the National Metrology Institute of Japan (NMIJ) is establishment of the national standards and reference materials. Research for thermophysical properties of solid is mainly performed by the thermophysical properties section in the material properties and metrological statistics division of NMIJ. Mission of the thermophysical properties section is to establish the national standard, the reference materials and the traceability for thermophysical property measurements from the view point of industrial, regulatory, and global needs. Reliable measurement methods, metrological standards, document standards such as ISO standards and Japanese industrial standards (JIS) have been developed for thermal conductivity, specific heat capacity, a thermal diffusivity, a thermal effusivity relating in transfer and storage of thermal energy and thermal expansion coefficient to express in temperature change of dimension of materials. The thermophysical properties section is also engaged in development of novel measurement technologies, such as a hybrid pulse heating method in order to measure multi properties simultaneously up to melting point of metals in faster than one second and pulsed light heating thermoreflectance methods in order to measure thermophysical properties of thin films.